Hearing prosthesis
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United States of America Patent
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-
Oct 18, 1994
Issued Date -
N/A
app pub date -
Oct 20, 1993
filing date -
Jun 10, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
For treatment of conductive hearing loss due, for example, to serous otitis media, a synthetic bubble is implanted in the hypotympanic cavity to displace fluid allowing free motion of the round window. A thin membrane provides the required degree of compliance, and is substantially impermeable to gases and water vapor, resulting in an extended lifetime. A large molecule inert filler gas may be used, either alone, or with normal gases to provide certain partial inflation states wherein osmotic ingress of smaller molecular gases causes sustained self-inflation of the bubble for a substantial time.
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Family
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